How do I enable auto-login in LightDM?

Question

I want user foo to auto-login using LightDM (which has been used by Ubuntu since version 11.10). How would I do that?

Answer 1

You can do this without editing configuration files: go to System Settings > User accounts, click "Unlock" and enter your password, then click the button next to "Automatic login":

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Answer 2

An alternative to Alin's answer is to create a file /etc/lightdm/lightdm.conf and add the following content:

[SeatDefaults]
autologin-user=<YOUR USER>
autologin-user-timeout=0
user-session=ubuntu
greeter-session=unity-greeter

Next time you start, auto-login should work like expected.

Answer 3

You can easily do this with lightdm-set-defaults if you'd rather not edit lightdm.conf manually:

sudo /usr/lib/lightdm/lightdm-set-defaults --autologin username

It will not set the autologin timeout, but the default for that is 0 in the code anyway, so you don't need to set it.

Answer 4

Search for "User Accounts" application. Select the account you want to autologin Toggle the Automatic Login switch to On

That should do the work.